ISL8282MFRZ-T - 15A PMBus Digital Step-Down Power Module | Renesas
MPN: ISL8282MFRZ-T ✓ Hoạt độngISL8282MFRZ-T Tóm tắt
A digital step-down power module is a non-isolated point-of-load (PoL) DC/DC converter that integrates the power stage, controller, and compensation into a single surface-mount unit. Within the power-management hierarchy it sits above discrete controllers-plus-MOSFET solutions, belonging to the family of voltage regulators, specifically digital switching regulators, and is programmed and monitored over the industry-standard PMBus serial bus.
Key features include single-channel 15A continuous output current, PMBus/SMBus telemetry for voltage, current, temperature and fault monitoring, and proprietary Renesas R4 Technology control architecture that enables fast transient response with high power density. Integrated LDOs supply the internal controller circuitry, reducing external component count and simplifying bill-of-materials. The module is optimized for high-density designs where board space and thermal performance are critical.
Technically, the hybrid digital architecture combines a digital loop controller with an integrated power stage. The R4 Technology control loop provides fast, stable transient response without external compensation design, and digital telemetry enables real-time margining, sequencing, and fault management. Output voltage can be set through PMBus commands or external configuration, supporting flexible rail deployment across multiple designs.
Typical applications include FPGA and ASIC core power rails in networking switches, storage and data-center equipment, industrial automation systems, and optical modules, where 15A continuous current at sub-5V rail voltages with PMBus manageability is required.
A key design consideration is thermal management: at 15A and low output voltages, conduction losses dominate, so adequate PCB copper area and airflow must be provided, and input/output capacitor selection should follow the manufacturer datasheet recommendations to maintain stability.
This page synthesizes distributor availability data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with pricing referenced as of 2026-10-19.
Bộ thay thế dễ dàng lắp đặt cho ISL8282MFRZ-T — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ISL8282MFRZ-T (cùng hình factor và footprint) — khác nhau ở Mounting Type, Topology, Control Type, Digital Interface, Integrated Features.
ISL8282MFRZ-T1
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Xem tài liệu →ISL8282MFRZ-T Tỷ lệ tối đa & tính chất điện
| Cấu trúc | Non-isolated PoL step-down (buck) power module |
| Control Architecture | Renesas R4 Technology, hybrid digital |
| Số lượng đầu ra | 1 |
| Phạm vi điện áp đầu vào | 4.5 V to 16.5 V |
| Khoảng điện áp đầu ra | 0.5 V to 5 V |
| Điện áp tối đa đầu ra | 15 A continuous |
| Peak Efficiency | up to 95% |
| Giao diện | PMBus enabled |
| Integrated Features | Integrated LDOs, power stage, controller, compensation |
| Kiểu lắp đặt | Surface Mount (board mount module) |
| Telemetry Functions | VIN, VOUT, current, temperature and fault monitoring via PMBus |
| Packaging | Tape & Reel (-T suffix) |
Hướng dẫn cấu hình chân ISL8282MFRZ-T standard
Cấu hình chân cho ISL8282MFRZ-T (standard gói). Động cơ điện này có chân cổng, nguồn và đầu ra. Đối với các gói không phân極, tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết hướng dẫn chính xác của chân 1 và chi tiết về vân footprint. Các ứng dụng phổ biến bao gồm thiết kế nguồn cung cấp điện, điều khiển động cơ và chuyển đổi tải.
Không có dữ liệu chân cụ thể sẵn có cho ISL8282MFRZ-T.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ISL8282MFRZ-T phù hợp cho 6 Áp dụngs: FPGA and ASIC Core Power, Networking Switch Line Cards, Enterprise Storage Systems, Industrial Automation Controllers, Optical and Communication Modules, Test and Measurement Instrumentation.
FPGA and ASIC Core Power
The ISL8282MFRZ-T fits FPGA and ASIC core rails because it delivers 15A continuous current at output voltages programmable down to 0.5V, matching modern sub-1V core requirements, with up to 95% efficiency limiting heat in dense boards. According to Renesas, the R4 Technology digital loop provides fast transient response for the sharp load steps FPGAs generate when fabric blocks switch. In a typical topology the module sits directly downstream of a 12V intermediate bus, with PMBus commands used for rail sequencing, voltage margining, and telemetry-based health monitoring. Its integrated power stage and compensation remove external loop tuning, cutting design time. The main trade-off versus a discrete multiphase solution is the 15A single-channel ceiling - larger FPGAs needing 30A+ require paralleling or a multiphase controller, so the module best serves mid-range devices.
Được đề xuất
Networking Switch Line Cards
Networking switch line cards need compact, managed 12V-to-low-voltage conversion for switch silicon, PHYs, and memory, and the ISL8282MFRZ-T addresses this with a 4.5V-16.5V input that connects directly to 12V intermediate bus architectures. According to Renesas, PMBus enablement allows the card's management controller to sequence, monitor, and margin the rail, log temperature and current telemetry, and respond to fault events - capabilities required for carrier-grade uptime. The module's high power density suits the tight vertical space above and below switch ASICs, and the integrated LDOs reduce external component count on crowded line cards. At 15A continuous it powers control-plane ASICs, CAM/TCAM rails, and mid-range PHY subsystems, while the 0.5V-5V range supports both legacy 3.3V rails and modern sub-1V cores on the same qualified footprint.
Được đề xuất
Enterprise Storage Systems
Storage controllers, SSD backplanes, and RAID processors benefit from the ISL8282MFRZ-T's combination of 15A output, PMBus supervision, and up to 95% efficiency. According to Renesas, the digital telemetry reports input and output voltage, current, and temperature, letting storage firmware enforce power budgets and detect degraded rails before data-path errors occur - important for systems promising high availability. The wide 4.5V-16.5V input accepts 12V or 5V backplane rails directly, and the 0.5V-5V output covers processor cores, memory, and I/O rails. Because the power stage, controller, and compensation are integrated, engineers avoid MOSFET and loop-compensation redesigns when spinning storage board revisions, shortening qualification cycles. Thermal design must account for conduction loss at 15A and low output voltage; the manufacturer datasheet derating curves should be consulted against enclosure airflow.
Được đề xuất
Industrial Automation Controllers
Industrial PLCs, motor-control compute modules, and edge controllers frequently run from 12V or 24V-then-12V distributed power, and the ISL8282MFRZ-T's 4.5V-16.5V input range fits those architectures while delivering up to 15A for embedded processors. According to Renesas, the PMBus interface supports supervisory strategies used in industrial systems - fault flagging, output voltage margining for self-test, and temperature monitoring in sealed enclosures. The module's high power density allows compact controller PCBs, and up to 95% efficiency reduces heat load in passively cooled cabinets. The digital R4 loop tolerates input transients typical of factory floors with fast, stable response. Designers should verify the operating temperature range and derating in the manufacturer datasheet for the cabinet's ambient conditions, and place input bulk capacitance to absorb inrush from long inductive wiring runs.
Được đề xuất
Optical and Communication Modules
High-speed optical transport modules and communication subsystem boards use 12V feeds and require tightly regulated low-voltage rails for DSPs, laser drivers, and servo electronics. The ISL8282MFRZ-T provides 0.5V-5V adjustable output at up to 15A with up to 95% efficiency, which limits module-level heat in thermally constrained optical housings. According to Renesas, integrated LDOs and the integrated power stage minimize external components, keeping the power section compact on small form-factor boards, while PMBus telemetry allows remote monitoring of rail health in remotely deployed equipment. The R4 Technology loop maintains regulation through burst-mode load changes characteristic of optical burst-mode receivers and TIA supply switching. Noise-conscious analog sections can benefit from post-regulation or filtering downstream of the module since it is a switching converter, and the datasheet output ripple specifications should be checked against analog rail requirements.
Được đề xuất
Test and Measurement Instrumentation
Bench instruments, modular rack instruments, and automated test equipment need efficient, adjustable, digitally managed rails for processor and mixed-signal sections. The ISL8282MFRZ-T's PMBus programmability lets instrument firmware adjust output voltage in the field, useful for margining tests and calibration routines, while telemetry on voltage, current, and temperature supports self-diagnostics demanded in laboratory-grade equipment. According to Renesas, up to 95% conversion efficiency and integrated compensation reduce thermal design burden inside enclosed instruments with limited airflow. The 4.5V-16.5V input accepts internal 12V auxiliary supplies directly, and 15A continuous output covers embedded compute and actuator-interface boards. Because it is a switching module, sensitive analog front ends should be fed from separate low-noise post-regulators; the module's switching-frequency ripple figures in the manufacturer datasheet should be reviewed when planning filtering for sub-millivolt analog rails.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ISL8282MFRZ-T — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ISL8282MFRZ-T1 | ISL8282MFRZ |
|---|---|---|---|
| Package | Board-mount surface-mount module (same package across family suffixes) | Same package - identical footprint | Same package - identical footprint |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Output Current | 15 A continuous | 15 A continuous | 15 A continuous |
| Input Voltage Range | 4.5 V to 16.5 V | 4.5 V to 16.5 V | 4.5 V to 16.5 V |
| Output Voltage Range | 0.5 V to 5 V | 0.5 V to 5 V | 0.5 V to 5 V |
| Peak Efficiency | up to 95% | up to 95% | up to 95% |
| PMBus Interface | Yes | Yes | Yes |
| Packing Method | Tape & Reel (-T) | Tape & Reel (alternate configuration) | Tray |
Bảo phân biệt quan trọng
- Identical die, alternative reel packing for automated lines (vsISL8282MFRZ-T1)
- Integrated PMBus digital management reduces system complexity (vsISL8282MFRZ (tray variant))
- Trade-off: 15A single-channel ceiling (vsISL8282MFRZ-T1)
Ghi chú thiết kế
Estimated: at 15A load with a 1.0V output from a 12V input at 92% efficiency, power loss is roughly 15A x 1.0V x (1/0.92 - 1) = about 1.3W. Consult the manufacturer datasheet thermal derating curves against your enclosure airflow and PCB copper area; at lower output voltages conduction loss dominates, so lower-efficiency operating points can raise module temperature significantly. Verify junction or case temperature against the datasheet limit before finalizing the thermal design.
Follow the manufacturer datasheet layout guidelines: place input ceramic capacitance close to the VIN/GND pins to minimize switching-loop inductance, provide solid copper pours for both input and output current paths, and use multiple vias to internal ground planes for thermal dissipation. Because the module integrates power stage and compensation, external layout sensitivity is far lower than a discrete controller design, but output capacitor ESR/ESL still affects transient response - select per the datasheet output capacitance recommendations for your load-step requirement.
Do not exceed the 16.5V maximum input rating - some 24V industrial rails require an upstream preregulator or a module rated for higher input. Confirm the exact ordering suffix (ISL8282MFRZ-T vs -T1 vs tray) before release, as packing configuration differs though the die is identical. When configuring output voltage via PMBus, verify that the required command set and stored configuration match your system's power sequencing plan, and validate fault-response behavior (shutdown vs. retry) in firmware before deployment.
Thông tin tuân thủ
Compliance status not stated in the provided verified web data; confirm on the official Renesas product page before release.
